Track URLRequestContext references in a set.

net/url_request/url_request_context.h

Index: net/url_request/url_request_context.h
diff --git a/net/url_request/url_request_context.h b/net/url_request/url_request_context.h
index f4fb5ea49279d342c706d619fb3e0da4903293bb..1bdb772cdf4cd7997d42ce13df4ddb0f004245ad 100644
--- a/net/url_request/url_request_context.h
+++ b/net/url_request/url_request_context.h
@@ -11,6 +11,8 @@
 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
 #pragma once
 
+#include <set>
+
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ -189,6 +191,12 @@ class NET_EXPORT URLRequestContext
     job_factory_ = job_factory;
   }
 
+  // Gets the URLRequest objects that hold a reference to this
+  // URLRequestContext.
+  std::set<const URLRequest*>* url_requests() const {
+    return url_requests_.get();
+  }
+
  protected:
   friend class base::RefCountedThreadSafe<URLRequestContext>;
 
@@ -232,6 +240,8 @@ class NET_EXPORT URLRequestContext
   // be added to CopyFrom.
   // ---------------------------------------------------------------------------
 
+  scoped_ptr<std::set<const URLRequest*> > url_requests_;
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };